# Limitguard, pay as you go, Free key, POST /v1/kyb/check, KYB Check: Business verification API

> Know Your Business verification: company registration, sanctions screening, VAT/VIES, and domain analysis in one call.

Limitguard's Free key plan for the business verification API costs $290.00 per 1,000 companies. Limitguard's docs list 3 of the 11 fields on our checklist: Registered name, Entity number, Status.
We haven't run Limitguard through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
Half of the 1,070 plans we rank by price cost $7.895 per 1,000 companies or less. This plan costs less per 1,000 companies than 10% of the 1,070 plans.
[CharityAPI's $15 monthly plan](https://datacircle.dev/business-verification-apis/charityapi/15-monthly-paid-get-api-organizations-ein/llms.txt) is the cheapest paid plan per 1,000 companies. CharityAPI's plan covers companies in the United States only. CharityAPI's $15 monthly plan charges nothing per call. You get as many companies as CharityAPI's rate limit allows. [ApiZero's CNY 399 yearly plan](https://datacircle.dev/business-verification-apis/apizero/cny-399-yearly-diamond-membership-get-api-company-search/llms.txt) costs the least for 10,000 companies a month: about $4.97.
[Scoris's €19 pack](https://datacircle.dev/business-verification-apis/scoris/19-pack/llms.txt) covers any number of companies in 8 countries only. Scoris's €19 pack costs more up front than CharityAPI's $15 monthly plan.
[GovFiles](https://datacircle.dev/business-verification-apis/govfiles/top-up/llms.txt), [Didit](https://datacircle.dev/business-verification-apis/didit/top-up-from-50/llms.txt) and [CompanyData.com](https://datacircle.dev/business-verification-apis/companydata-com/249-monthly/llms.txt) are the best business verification API providers in the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-free-key-post-v1-kyb-check-kyb-check
- [Business verification API: the 13 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://limitguard.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://api.limitguard.ai/v1/kyb/check`, KYB Check
- API key: with the plan, on https://limitguard.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://api.limitguard.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: Limitguard (https://limitguard.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 27%
- Registered name: ✓
- Entity number: ✓
- Status: ✓

## Price

- $ per 1,000 companies: $290.00
- Per: call
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Verify an entity across registries, sanctions and risk layers · Score an entity's risk (0-100) from name and country · Score an entity's reputation with linear trust decay · Get an ERC-8004 agent's USDC balance on Base · Get sanctions-list changes and hits on entities you checked · Screen a name against the OFAC, EU and UN sanctions lists · Check an entity for PEP ties, insolvency and adverse media · Build a compliance report on an entity · Check an agent wallet: sanctions, balance, ERC-8004 identity · Verify a sales lead: NL/BE register, VAT, mail server, IBAN, sanctions, lead score · Check a company's register status, VAT and sanctions · Check an x402 seller before you pay: wallet, domain, sanctions · Screen a wallet: OFAC SDN, on-chain signals and risk rules · Get EU AI Act readiness and gaps for an AI system · Get an entity's reputation score timeline

## In their words

- Their pitch: Know Your Business verification: company registration, sanctions screening, VAT/VIES, and domain analysis in one call.

## Data

- Countries: Netherlands, Belgium
- Keep data: no limit
- Use data: Results (verdicts, scores, risk signals) are licensed for your internal business use. You may display them to your own customers in the context of your service. [...] You agree not to: [...] Resell API responses as a competing validation or trust intelligence service without prior written agreement. [...] Use check results for direct marketing or any other purpose in breach of the law (including the GDPR and the ePrivacy rules). You are responsible for how you use the results. Use trust scores as the sole basis for denying individuals access to essential services without human review.

## Plan

- Pay: per call

## Rate limit

- Per day: 500
- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: entity_id, registration_number, country. Optional: entity_name, vat_number, domain, X-Response-Quality header
- Method: POST
- Path: /v1/kyb/check

## About the plan

- Plan: Free key
- Who can get it: anyone with an email address

## The 32 fields the plan's answer can hold

verified, register verified, register checked, sanctions flagged, KYB status, trust score, risk flags, group structure status, group structure reason, LEI, legal name, direct parent LEI, direct parent name, direct parent country, ultimate parent LEI, ultimate parent name, ultimate parent country, registration status, next renewal date, retrieved at, cache age days, parents screened, group chain status, group chain summary, group chain link role, group chain link name, group chain link country, group chain link share percentage, group chain link scope, group chain link LEI, group chain link lookup, group chain link source

## Limitguard's plans (7)

- [Limitguard, pay as you go, Free key, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-free-key-post-v1-kyb-check-kyb-check/llms.txt): $290.00 per 1,000, 27% complete
- [Limitguard, pay as you go, x402 pay per call, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-x402-pay-per-call-post-v1-kyb-check-kyb-check/llms.txt): $290.00 per 1,000, 27% complete
- [Limitguard, top-up from $5, Top-up, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/top-up-from-5-top-up-post-v1-kyb-check-kyb-check/llms.txt): $1,500.00 per 1,000, 27% complete
- [Limitguard, $29 pack, Indie, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/29-pack-indie-post-v1-kyb-check-kyb-check/llms.txt): $1,500.00 per 1,000, 27% complete
- [Limitguard, $99 pack, Starter, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/99-pack-starter-post-v1-kyb-check-kyb-check/llms.txt): $1,500.00 per 1,000, 27% complete
- [Limitguard, $299 pack, Growth, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/299-pack-growth-post-v1-kyb-check-kyb-check/llms.txt): $1,500.00 per 1,000, 27% complete
- [Limitguard, $999 pack, Pro, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/999-pack-pro-post-v1-kyb-check-kyb-check/llms.txt): $1,500.00 per 1,000, 27% complete

## Limitguard's calls (4)

- `POST /v1/kyb/check`, KYB Check: [Limitguard, pay as you go, Free key, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-free-key-post-v1-kyb-check-kyb-check/llms.txt)
- `POST /v1/kyb/check`, KYB Check, cached: [Limitguard, pay as you go, Free key, POST /v1/kyb/check, KYB Check, cached](https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-free-key-post-v1-kyb-check-kyb-check-cached/llms.txt)
- `POST /v1/leads/verify`: [Limitguard, pay as you go, Free key, POST /v1/leads/verify](https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-free-key-post-v1-leads-verify/llms.txt)
- `POST /v1/entity/light-check`: [Limitguard, pay as you go, Free key, POST /v1/entity/light-check](https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-free-key-post-v1-entity-light-check/llms.txt)

## Limitguard's APIs (1)

- [Limitguard: business verification API pricing, 7 plans, POST /v1/kyb/check, KYB Check](https://datacircle.dev/business-verification-apis/limitguard/pay-as-you-go-free-key-post-v1-kyb-check-kyb-check/llms.txt)

## Limitguard: business verification API alternatives

- [TINCheck, $1,299.95 monthly](https://datacircle.dev/business-verification-apis/tincheck/1299-95-monthly/llms.txt): $259.99 per 1,000, 9% complete, live
- [OpenCorporates, £6,600 yearly](https://datacircle.dev/business-verification-apis/opencorporates/6600-yearly/llms.txt): $293.37 per 1,000, 55% complete, stored
- [TIN Comply, $300 monthly, Enterprise Basic, POST /api/v1/validate/company-details-lookup-by-name-address](https://datacircle.dev/business-verification-apis/tin-comply/300-monthly-enterprise-basic-post-api-v1-validate-company-details-lookup-by-name-address/llms.txt): $300.00 per 1,000, 27% complete, stored
- [VAT Search, €171 yearly](https://datacircle.dev/business-verification-apis/vat-search/171-yearly/llms.txt): $320.711 per 1,000, 55% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-07.

- https://api.limitguard.ai/llms-full.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://api.limitguard.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.limitguard.ai/authentication?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.limitguard.ai/guides/rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.limitguard.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://limitguard.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://limitguard.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://limitguard.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing